Abreviation found in the explanation of a charted symbol for Three Sisters Scarves No. 1 (Monika Steinbauer)How should I read this abreviation? I am unsure of the meaning. If I ssk and then purl 2 tog.through backloop (which is how I read the abreviation do I purl the stitch resulting from ssk with the next one of the row through backloop or should I understand this abreviation differently?